Cuff-pin.



. PATENTED SEPT. l, 1908.

J. A. GHAPLIN,

CUFF PIN.

APPLICATION FILED NARA, 190a.

W/W J ATTORNEY.

UNITED STATES PATENT onrron.

JOHN A. OHAPLIN, OF WARWICK, RHODE ISLAND, ASSIGNOR TO WAITE 'II-IRESHER COMPANY, OF PROVIDENCE, RHODE ISLAND, A CORPORATION OF RI-IODE ISLAND.

CUFF-PIN.

Specification of Letters Patent.

Patented Sept. 1, 1908.

Application filed March 4;, '1908. Serial No. 419,133.

taken in connection with the accompanying drawings, forming a part of the same, to be a full, clear, and exact description thereof.

The invention relates to those articles of jewelry which are known as cuff-pins and has for its object to provide a pin of -this character with means for strengthening the body portion of the back of the pin at the point where the greatest strain comes in the operation of the pintongue.

T that end the invention consists in the novel construction and combination of elements hereinafter described and claimed, reference being made to the accompanying drawings in which Figure 1 is a plan view of a blank stamped out of a sheet of metal from which the back portion of my improved cuff-pin is formed. Fig. 2 is a side elevation of the front or ornamental portion. Fig. 3 is a side elevation of the back portion in its completed form. Fig. 4 is a plan view of the underside of said back portion. Fig. 5 is a central longitudinal section of the completed pin. Fig. 6 is a section on line a.r, Fig. 4, onan enlarged scale. Fig. 7 is a section on line y1 Fig. 5, on an enlarged scale. Fig. 8 is a section on line z z, Fig. 5, on an enlarged scale. Fig. 9 is a central longitudinal section of a modified construction.

Referring to the drawings, 1 represents the blank from which the back portion of the cuff-pin is formed, said blank being stamped out from a strip of sheet metalby means of a suitable die and plunger. The blank 1 is provided at one end with an enlargement 2 and at the other end with two oppositely disposed lateral ears or extensions 3 and the short tail-piece 4, all as shown in Fig. 1. The blank 1, after it has been stamped from the sheet stock, is operated upon by a suit able die and plunger, which operation rolls over the enlargement 2 to form the pincatch 5. In the same operation the lateral ears 3 are bent up to form the hinge members 6, and the end portion of blank 1, which lies beneath said hinge-members 6 is bent upward above the level of the body portion of said blank and the tail-piece is bent downward,

thereby forming the bearing portion 7, all as shown in Fig. 3. Adjacent the hinge-members 6 and in line with the longitudinal axis of the blank 1 is. a short inclined rib or corrugation 8 for a purpose to be hereinafterdescribed. Mounted in the hinge-members 6 is a suitable pin-tongue 9.

The front or ornamental portion of the pin consists of an elliptical cup-shaped member 10, the sides of which are higher throughout their central portions 11 than at their end portions 12, as shown in Fig. 2. In assembling the two parts of the pin the back por tion in its completed form, shown in Fig. 3, is placed within the cup-shaped front portion 10, and the central portions 11 of the sides of said front portion are rolled over and their edges clamped tight against the outer surface of the body portion of the blank 1, as shown in Figs. 5 and 7.

Referring to Fig. 5, it will be seen that the right angle fulcrum-point 1.3 of the pin-tongue 9 will, in turning said pin-tongue to closed position, bear upon the top of the bearing portion 7 and tend to force said bearing portion downward into the cup-shaped member 10, but any such. pressure will spring the free end or tail piece 4 lengthwise, so thatit will impinge all the harder against the end of said cup-shaped member. As the bearing portion 7 cannot move laterally under pres sure, the tendency is for it to bend or buckle and this is prevented by the strengthening rib 8.

With the above construction the cuff-pin produced is extremely strong and efficient and the necessity of bending over the ends of the front portion upon projections formed on the back portion is obviated. If desired the strengthening rib or corrugation may be ex tended along the body portion of the blank 1 any distance, as shown at S in Fig. 9.

Other changes in the construction may be made without departing from the spirit and scope of my invention, and I do not wish to limit myself except as required by the scope of the appended claims to the exact construction shown.

What I claim as my invention and desire to secure by Letters Patentis:

1. In an article of the class described, the combination, with a cup-shaped front portion, of a back portion secured therein, said back portion being provided at one end with a pin-catch and at the other end with a pair of hinge -members, a pintongue pivoted therein, and a bearin portion in said back portion beneath sai hinge-members, the free end of said bearing portion engaging the inner end wall of the front portion.

2. In an article of the class described, the combination, with a cup-shaped front por tion, of a back portion secured therein, said back portion being provided at one end with a pin-catch and at the other end with a pair of hinge -n1embers, a pin tongue pivoted therein, and a longitudinally extending rib having its rear end located adjacent said hinge-members.

3. In an article of the class described, the combination, with a cup-shaped front portion, of a back portion secured therein, said back portion being provided at one end with a pin-catch and at the other end with a pair of hinge members, a pin tongue pivoted therein, a bearing portion in said back portion beneath said hinge-members, and a lon gitudinal rib at the forward end of said bearing portion, the free end of said bearing por tion engaging the inner end of the front portionc 4. In an article of the class described, the combination, with a cup-shaped front portion, of a back portion secured therein, said back portion being provided at one end with a pin-catch and at the other end with a pair of hinge members, a pintongue pivoted therein, and an inclined longitudinally eX- tending rib having its rear end extending between said hinge-members.

5. A back plate for cuff-pins and similar articles comprising a body portion, a pincatch and a pair of'hingemembers integral with said body portion, and a longitudinal rib upon the front of said body portion adj acent the forward ends of said hinge-members.

6. A back plate for cuff-pins and similar articles comprising a body portion provided with a pin-catch, a pair of hinge-members, a bearing portion in said body portion beneath said hinge1nembers, and an inclined rib at the forward end of said bearing portion.

J OI-IN A. CIIAPLIN.

Witnesses W. H. TI-IURSTON, J. H. THURSTON. 

